Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Association LAA01
Thelypterido palustris-Alnetum glutinosae Klika 1940

Thelypterido palustris-Alnetum glutinosae

Photo on botanickafotogalerie.cz

This association of Alnus glutinosa carr occurs in acidic and nutrient-poor waterlogged habitats, which support occurrence of Betula pubescens and Picea abies. The herb layer is composed of acidophilous sedges and other species of nutrient-poor soils. The moss layer is well developed, with a significant participation of Sphagnum spp. In the Czech Republic this association occurs mainly in the Doksy region of northern Bohemia, but it has also been recorded in other areas of the Bohemian Massif.

Nomen mutatum propositum et nomen inversum propositum

Orig. (Klika 1940): Alnus glutinosa-Dryopteris thelypteris-Assoziation (Dryopteris thelypteris= Thelypteris palustris)

Syn.: Sphagno squarrosi-Alnetum Solinska-Górnicka ex Prieditis 1997, Calamagrostio canescentis-Alnetum glutinosae sensu Mikyška 1956 non Scamoni 1935 (pseudonym), Sphagno-Alnetum glutinosae sensu Franz et Willner in Willner et Grabherr 2007 non Lemée 1937 (pseudonym)

Diagnostic species: Alnus glutinosa, Betula pubescens, Frangula alnus, Salix pentandra; Agrostis canina, Calamagrostis canescens, Calla palustris, Carex canescens, C. elongata, C. paniculata, Dryopteris carthusiana, Equisetum fluviatile, Lysimachia thyrsiflora, L. vulgaris, Peucedanum palustre, Thelypteris palustris, Viola palustris; Plagiothecium denticulatum, Riccardia latifrons, R. multifida, Sphagnum fimbriatum, S. palustre

Constant species: Alnus glutinosa, Betula pendula, Frangula alnus, Picea abies; Agrostis canina, Carex canescens, C. nigra, C. rostrata, Cirsium palustre, Deschampsia cespitosa, Dryopteris carthusiana, Equisetum fluviatile, Galium palustre agg., Lycopus europaeus, Lysimachia vulgaris, Molinia caerulea agg., Peucedanum palustre, Vaccinium myrtillus, Viola palustris; Sphagnum palustre

Dominant species: Alnus glutinosa, Frangula alnus; Calla palustris, Carex brizoides, C. paniculata, Equisetum sylvaticum, Lysimachia vulgaris, Molinia caerulea agg.; Sphagnum palustre

Formal definition: Alnus glutinosa cover > 25 % AND (Betula pendula cover > 5 % OR Betula pubescens cover > 5 % OR Frangula alnus cover > 5 % OR Pinus sylvestris cover > 5 %) AND (Group Carex panicea OR Group Carex rostrata OR Group Viola palustris) NOT Group Caltha palustris NOT Group Carex remota

Source: Douda J. (2013): LAA01 Thelypterido palustris-Alnetum glutinosae Klika 1940. In: Chytrý M. (ed.), Vegetace České republiky. 4. Lesní a křovinná vegetace [Vegetation of the Czech Republic 4. Forest and shrub vegetation]. Academia, Praha, pp. 169-171.